663102312 has 64 divisors (see below), whose sum is σ = 1703285760. Its totient is φ = 215006400.

The previous prime is 663102311. The next prime is 663102317. The reversal of 663102312 is 213201366.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (663102311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278487 + ... + 280857.

It is an arithmetic number, because the mean of its divisors is an integer number (26613840).

Almost surely, 2^663102312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663102312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851642880).

663102312 is an abundant number, since it is smaller than the sum of its proper divisors (1040183448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663102312 is a wasteful number, since it uses less digits than its factorization.

663102312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694 (or 2690 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 663102312 is about 25750.7730369401. The cubic root of 663102312 is about 872.0208065344.

Adding to 663102312 its reverse (213201366), we get a palindrome (876303678).

The spelling of 663102312 in words is "six hundred sixty-three million, one hundred two thousand, three hundred twelve".